Part #: 17939N

WAI 17939N Starter

⚙️ 11 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Jeep, Commander and Grand Cherokee
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Reliable Starter for Jeep Commander and Grand Cherokee

The WAI 17939N starter is designed to provide dependable starting power for Jeep Commander and Grand Cherokee models. Featuring a permanent magnet gear reduction design, this starter ensures efficient operation and consistent performance.

  • Permanent magnet gear reduction design for improved torque
  • Power rating of 1.2 kW for reliable engine starts
  • Clockwise (right) starter rotation compatible with specified Jeep models
  • 10-tooth pinion gear for precise engagement
  • Flange mounting type for secure installation

Technical Details of the WAI 17939N Starter

This starter motor is engineered with a permanent magnet gear reduction system, which enhances torque output while reducing overall size and weight. The 1.2 kW power rating supports efficient engine cranking, making it suitable for Jeep Commander and Grand Cherokee vehicles. The clockwise rotation and 10-tooth pinion gear ensure proper meshing with the engine flywheel, while the flange mounting type provides a stable and secure fit. This starter is part of the Mitsubishi family, known for compatibility with various Jeep models.

Compatible Vehicles and Applications

The WAI 17939N starter is specifically compatible with Jeep Commander and Jeep Grand Cherokee models. It is designed to replace original equipment starters that require a clockwise rotation and a 10-tooth gear. This part is ideal for addressing issues such as:

  • Engine cranking failure or slow starts
  • Intermittent starter engagement problems
  • Starter motor noise or grinding during operation
  • Wear or damage to the original starter pinion gear
  • Electrical faults causing starting system malfunctions

Installation Notes and Tips

When installing the WAI 17939N starter, ensure the mounting flange aligns correctly with the engine block. Verify the starter rotation is clockwise to match the engine’s requirements. Inspect the flywheel teeth for wear before installation to prevent premature starter damage. Proper electrical connections should be secured to maintain optimal performance.

Quality Assurance and Warranty

WAI starters are manufactured to meet industry standards for durability and performance. While specific warranty details are not provided here, WAI products typically undergo rigorous testing to ensure reliability in demanding automotive applications. For warranty information, refer to the product documentation or contact the distributor.

BrandWAI
Part Number17939N
1212
DesignPermanent magnet gear reduction
FamilyMitsubishi
Power Rating1.2
Starter RotationClockwise (right)
Tooth Quantity10
Mounting TypeFlange

This part fits 11 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2010JeepCommander3.7LV6N/A
2010JeepGrand Cherokee3.7LV6N/A
2009JeepCommander3.7LV6N/A
2009JeepGrand Cherokee3.7LV6N/A
2008JeepCommander3.7LV6N/A
2008JeepGrand Cherokee3.7LV6N/A
2007JeepCommander3.7LV6N/A
2007JeepGrand Cherokee3.7LV6N/A
2006JeepCommander3.7LV6N/A
2006JeepGrand Cherokee3.7LV6N/A
2005JeepGrand Cherokee3.7LV6N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1793956044734AAM000T31471M000T31471ZC

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.